Add authentication

app/db.py

@@ -0,0 +1,10 @@
+import sqlite3
+from pathlib import Path
+
+BASE_DIR = Path(__file__).resolve().parent.parent
+DB_PATH = BASE_DIR / "data" / "app.db"
+
+
+def get_conn():
+    # check_same_thread=False, damit Streamlit mehrere Threads nutzen kann
+    return sqlite3.connect(DB_PATH, check_same_thread=False)